This paper presents a model depicting cross-border payment systems as a mixed oligopoly.A private net settlement system that maximises profit competes with the central banks' gross settlement system that maximises welfare.It may be optimal for the central bank system to encourage increased use...

This paper presents a model depicting cross-border payment systems as a mixed oligopoly. A private net settlement system that maximises profit competes with the central banks’ gross settlement system that maximises welfare. It may be optimal for the central bank system to encourage increased...

This paper examines environmental effects of trade in recycled materials in a two-country model of international trade with a vertical structure. Downstream duopoly firms located in different countries can use recycled materials as an input to produce a recyclable final good. With heterogeneous...

This paper focuses on the effects of product market integration on wage-bargaining institutions in a one-way trade model of an international Cournot oligopoly. It shows that product market integration (i.e. a reduction in trade costs either from an arbitrary or from its optimal level) lowers the...

It is often argued that price indexes do not fully capture the quality improvements of new goods in the market. Because of this shortcoming, price indexes are perceived to overestimate the actual price increases that occur. In this paper, I argue that the quality bias in price indexes is just as...

This paper reviews some puzzling economic aspects of globalisation and argues that they cannot be satisfactorily addressed in perfectly or monopolistically competitive models. Drawing on recent work, a model of oligopoly in general equilibrium is sketched. The model ensures theoretical...